[committed] libstdc++: Rename tests with incorrect extension

[Jonathan Wakely]

The libstdc++ testsuite only runs .cc files, so these two old tests have
never been run.

Signed-off-by: Jonathan Wakely <jwakely@redhat.com>

libstdc++-v3/ChangeLog:

	* testsuite/26_numerics/valarray/dr630-3.C: Moved to...
	* testsuite/26_numerics/valarray/dr630-3.cc: ...here.
	* testsuite/27_io/basic_iostream/cons/16251.C: Moved to...
	* testsuite/27_io/basic_iostream/cons/16251.cc: ...here.

Tested x86_64-linux. Committed to trunk.

-------------- next part --------------
commit 749c31b345c2a37106b57ce805ea46a6d4765e09
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Fri Sep 17 12:25:40 2021

    libstdc++: Rename tests with incorrect extension
    
    The libstdc++ testsuite only runs .cc files, so these two old tests have
    never been run.
    
    Signed-off-by: Jonathan Wakely <jwakely@redhat.com>
    
    libstdc++-v3/ChangeLog:
    
            * testsuite/26_numerics/valarray/dr630-3.C: Moved to...
            * testsuite/26_numerics/valarray/dr630-3.cc: ...here.
            * testsuite/27_io/basic_iostream/cons/16251.C: Moved to...
            * testsuite/27_io/basic_iostream/cons/16251.cc: ...here.

diff --git a/libstdc++-v3/testsuite/26_numerics/valarray/dr630-3.C b/libstdc++-v3/testsuite/26_numerics/valarray/dr630-3.cc
similarity index 100%
rename from libstdc++-v3/testsuite/26_numerics/valarray/dr630-3.C
rename to libstdc++-v3/testsuite/26_numerics/valarray/dr630-3.cc
diff --git a/libstdc++-v3/testsuite/27_io/basic_iostream/cons/16251.C b/libstdc++-v3/testsuite/27_io/basic_iostream/cons/16251.cc